A high-quality rotary injection pump, the heart of the fuel system in JCB DieselMax Tier 3 engines. Its job is to precisely meter and pressurize fuel, then deliver it under high pressure to the individual injectors. The pump's efficiency directly impacts the engine's power, fuel consumption, and ease of starting.
Original Equipment Manufacturer (OEM) quality product – guarantees a perfect fit and parameters identical to the original part.
| Brand (Machine Type) | Model |
|---|---|
| JCB (Backhoe Loaders) | 3CX, 4CX (with 74.2kW DieselMax engine, manufactured after 2005) |
| JCB (Telehandlers) | Loadall (models with 74.2kW DieselMax engine) |
The list above is for reference. It is crucial to ensure that your machine is fitted with a 74.2kW (100HP) JCB DieselMax engine.
Clean fuel is key to the long life of a rotary pump. Before installing the new pump, you must replace all fuel filters with new, high-quality REDX filters and fill the engine with fresh HYPTRON oil. We also recommend flushing the fuel tank and checking the lines for contamination.
The injection pump is one of the most expensive and precise components of the engine. Its failure will immobilize the machine and can lead to damage to the injectors. Proper diagnosis is crucial to avoid unnecessary costs.
Pump replacement may be necessary if the engine:
✓ The Precision of Original Parts at Your Fingertips: Choose GX-OEM Quality
By choosing GX-OEM parts, you are investing in the uncompromising quality of the first assembly. Our injection pump is made with the highest precision, guaranteeing a perfect fit and operating parameters (pressure, fuel delivery) identical to the original. This is the best investment in a long and trouble-free operation of your machine.
Machine won't start or is losing power? Don't risk further damage!
A faulty injection pump can lead to the destruction of the injectors. Order a new OEM-quality pump today and restore full power and reliability to your engine!
This is one of the main causes, but not the only one. Starting problems can also be caused by worn injectors, a faulty pre-supply pump, clogged fuel filters, low engine compression, or fuel draining back.
2. What is the difference between this rotary pump and a Common Rail pump?A rotary pump generates its own pressure and meters fuel to individual injectors at the right moment. A Common Rail system has a pump that only generates constant high pressure in a reservoir (the rail), and electronically controlled injectors are responsible for metering and injection timing. They are not interchangeable.
3. What is the most common cause of rotary pump failure?By far the most common cause is poor quality fuel containing water or solid contaminants. This leads to the seizure of precision components inside the pump (piston, head). That is why regular replacement of high-quality fuel filters is so important.
🛡️
Restored Engine Power
Regain full performance and dynamics.
🎯
OEM Quality
Reliability and durability like the original.
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Reliable Starting
Eliminates engine starting problems.
Have doubts or need confirmation to avoid costly downtime? Call us. Our experts will help you choose the right part to get your equipment back to work as soon as possible.
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Pump fuel injection suitable for JCB 3CX 4CX machines with a JCB DieselMax 74.2kW engine.

















